Previously known as Leptothorax interruptus this species is now placed in Temnothorax (Bolton 2003). Although widely distributed in Europe, this ant is nowhere common. The small, brownish-yellow workers may be distinguished from those of the three similar British and Channel Islands species - T. albipennis, T. nylanderi and T. unifasciatus - by their combination of relatively long and typically incurved pronotal spines, darkened antennal clubs, and the possession of a dark band, interrupted in the middle, on the first gastral tergite.
The small number of British records for T. interruptus come only from the extreme south of England, where the species is currently known from heathland in Dorset and the New Forest, and from Dungeness. It has also been recorded from Hayling Island (Collingwood, 1964), Lydd-on-Sea (Felton, 1965) and Rye Harbour (Grace & Yates, 1989).
Elsewhere, this species occurs sparsely in Denmark and southern parts of Sweden and Finland, and in southern and central Europe (Collingwood 1979; Borgesen 2000; Czechowski, Radchenko & Czechowska 2002).